Vehicle-mounted optical communication module

Abstract

The utility model relates to the field of vehicle-mounted communication technology, concretely relates to vehicle-mounted optical communication module. The camera of module is used for obtaining the image information of car, and control chip can receive the image information of camera and convert into information electric signal, and the sending assembly, optical coupling connector and receiving assembly of light transmission unit are integrated on the circuit board, and sending assembly can receive the information electric signal of control chip and convert into information optical signal and emit, and the uplink fiber link of optical coupling connector can receive the information optical signal of sending assembly and transmit to the vehicle-mounted central control system, and the downlink fiber link can receive the control optical signal instruction of vehicle-mounted central control system and transmit to receiving assembly, and receiving assembly is used for receiving control optical signal instruction and converting control optical signal instruction into control electric signal and then transmitting to control chip. The utility model can realize optical communication through light transmission unit, provides larger bandwidth and higher rate communication link, satisfies the communication demand of automobile intelligentization.

Description

Technical Field

[0001] This utility model relates to the field of vehicle communication technology, and in particular to a vehicle optical communication module. Background Technology

[0002] In existing automotive communication systems, information transmission between camera signals and the vehicle's central control system typically uses cables such as copper or aluminum wires. Specifically, the image information captured by the camera needs to be transmitted via cable to the MAC (Media Access Control) chip in the vehicle's central control system. After the vehicle's central control system generates instruction information, it also needs to be transmitted to the MAC chip to be converted into camera instruction information, and then transmitted again via cable to the camera to guide it in completing its work.

[0003] As the level of automotive intelligence increases, the demands on information transmission and processing in automotive communications are also rising. Existing in-vehicle cable communication systems are unable to handle higher-speed information transmission and larger bandwidth requirements, making it difficult to meet the communication needs of intelligent vehicles. Utility Model Content

[0004] This utility model provides an in-vehicle optical communication module to solve the problem that existing in-vehicle cable communication is difficult to meet the communication needs of intelligent vehicles.

[0005] This utility model discloses an in-vehicle optical communication module, comprising: a circuit board; a camera for acquiring image information around a vehicle; a control chip disposed on the circuit board and electrically connected to the camera for receiving image information from the camera and converting it into an information electrical signal; and an optical transmission unit comprising a transmitting component, an optical coupling connector, and a receiving component. The transmitting component, the optical coupling connector, and the receiving component are all integrated on the circuit board. The transmitting component is electrically connected to the control chip and is used to receive the information electrical signal from the control chip and convert the information electrical signal into an information optical signal before emitting it. The optical coupling connector has an uplink optical fiber link and a downlink optical fiber link. The uplink optical fiber link is used to receive the information optical signal and transmit the information optical signal to the in-vehicle central control system. The downlink optical fiber link is used to receive control optical signal commands transmitted by the in-vehicle central control system and transmit the control optical signal commands to the receiving component. The receiving component is electrically connected to the control chip and is used to receive the control optical signal commands, convert the control optical signal commands into control electrical signals, and transmit them to the control chip.

[0006] Optionally, the uplink fiber optic link includes a total reflection mirror disposed on the optical coupling connector and N uplink fibers. The N uplink fibers are arranged in parallel. The light input end of each uplink fiber and the transmitting component are both located on the reflection side of the total reflection mirror. The transmitting component is correspondingly disposed with the light output end of the uplink fiber. The light output end of each uplink fiber is connected to the vehicle central control system.

[0007] Optionally, the uplink fiber optic link further includes N lenses disposed on the optical coupling connector, each lens being located between the light-emitting side of the transmitting component and the reflective side of the total reflection mirror, and corresponding to the light-inlet end of each of the fiber optic links.

[0008] Optionally, the optical coupling connector is provided with a first positioning groove, which is located on the reflecting side of the total reflection mirror. The groove wall on the side of the first positioning groove near the total reflection mirror is provided with N first positioning holes, and the groove wall on the other side is provided with N first mounting holes. The light-inlet end of the uplink optical fiber passes through the first mounting hole and the first positioning groove in sequence, and is inserted into the first positioning hole.

[0009] Optionally, the first positioning groove is filled with glue.

[0010] Optionally, the total reflection mirror is set at a 45° angle to the light input direction of the uplink optical fiber and the light output direction of the transmitting component.

[0011] Optionally, the downlink fiber link includes N downlink fibers disposed on the optical coupling connector. The N downlink fibers are arranged in parallel. The input end of each downlink fiber is connected to the vehicle central control system, and the output end of each downlink fiber is disposed opposite to the receiving component.

[0012] Optionally, the optical coupling connector is provided with a second positioning groove, and the groove wall of the second positioning groove near the receiving component is bent and provided with N second positioning holes so that the second positioning holes can be exposed at the bottom of the optical coupling connector. The groove wall on the other side of the second positioning groove is provided with N second mounting holes, and the light-emitting end of the downlink optical fiber passes through the second mounting hole, the second positioning groove and the second positioning hole in sequence.

[0013] Optionally, the second positioning groove is filled with adhesive.

[0014] Optionally, the vehicle-mounted optical communication module further includes a housing, a cover, and an optical fiber adapter. The housing has a receiving slot, in which the circuit board, the control chip, and the optical transmission unit are all disposed. The cover is disposed at the opening of the receiving slot. The slot walls on both sides of the receiving slot have a first mounting port and a second mounting port, respectively. The camera is located outside the housing and partially passes through the first mounting port for electrical connection with the control chip. The optical fiber adapter is installed at the second mounting port to fix the uplink optical fiber and the downlink optical fiber.

[0015] The beneficial effects of the vehicle-mounted optical communication module provided in this embodiment are as follows: The vehicle-mounted optical communication module includes a circuit board, a camera, a control chip, and an optical transmission unit. The camera is used to acquire image information around the vehicle. The control chip is mounted on the circuit board and electrically connected to the camera, used to receive the image information from the camera and convert it into an electrical signal. The optical transmission unit includes a transmitting component, an optical coupling connector, and a receiving component, all integrated on the circuit board. The transmitting component is electrically connected to the control chip, used to receive the electrical signal from the control chip and convert it into an optical signal before emitting it. The optical coupling connector has an uplink fiber optic link and a downlink fiber optic link. The uplink fiber optic link is used to receive the optical signal emitted by the transmitting component and transmit it to the vehicle's central control system, enabling the central control system to quickly acquire the image information around the vehicle contained in the optical signal, thereby enabling rapid lane recognition and reversing guidance, and other assisted driving functions. The downlink fiber optic link is used to receive control optical signal commands transmitted from the vehicle's central control system and transmit these commands to the receiving component. The receiving component is electrically connected to the control chip and receives the control optical signal commands, converting them into control electrical signals before transmitting them to the control chip. This allows the control chip to control the camera to perform corresponding operations based on the control optical signal commands. Compared to in-vehicle cable communication, this invention achieves optical communication through an optical transmission unit, providing a communication link with greater bandwidth and higher speed, meeting the communication needs of intelligent vehicles. Attached Figure Description

[0016] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0017] Figure 1 This is a three-dimensional schematic diagram of the vehicle-mounted optical communication module according to an embodiment of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the vehicle-mounted optical communication module according to an embodiment of this utility model;

[0019] Figure 3This is an exploded view of the optical coupling connector according to an embodiment of the present invention;

[0020] Figure 4 This is a three-dimensional schematic diagram of the optical coupling connector according to an embodiment of the present invention;

[0021] Figure 5 This is a three-dimensional schematic diagram of the optical coupling connector according to an embodiment of the present invention;

[0022] Figure 6 This is a three-dimensional schematic diagram of the optical coupling connector according to an embodiment of the present invention;

[0023] Figure 7 This is a schematic diagram of the optical path of the uplink fiber optic link in an embodiment of this utility model;

[0024] Figure 8 This is a schematic diagram of the optical path of the downlink optical fiber link according to an embodiment of this utility model;

[0025] Figure 9 This is a three-dimensional schematic diagram of the shell of an embodiment of this utility model.

[0026] The labels for the attached figures are as follows:

[0027] 100. Vehicle-mounted optical communication module;

[0028] 1. Housing; 11. Receiving slot; 111. First mounting port; 112. Second mounting port; 2. Cover; 3. Circuit board; 4. Camera; 5. Control chip; 6. Optical transmission unit; 61. Transmitting component; 611. Driver chip; 612. Laser chip; 62. Optical coupling connector; 621. Uplink fiber optic link; 6211. Lens; 6212. Total reflection mirror; 6213. Uplink fiber optic; 622. First positioning slot; 6221. First positioning hole; 6222. First mounting hole; 623. Downlink fiber optic link; 6231. Downlink fiber optic; 624. Second positioning slot; 6241. Second positioning hole; 6242. Second mounting hole; 63. Receiving component; 631. Photoelectric conversion chip; 632. Transimpedance amplifier chip; 7. Fiber optic adapter. Detailed Implementation

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0030] This utility model embodiment provides a vehicle-mounted optical communication module 100, such as Figures 1 to 3As shown, the vehicle-mounted optical communication module 100 includes a circuit board 3, a camera 4, a control chip 5, and an optical transmission unit 6. Among them, camera 4 is used to acquire image information around the vehicle; control chip 5 is located on circuit board 3 and electrically connected to camera 4, used to receive image information from camera 4 and convert it into information electrical signals; optical transmission unit 6 includes a transmitting component 61, an optical coupling connector 62 and a receiving component 63, all of which are integrated on circuit board 3. The transmitting component 61 is electrically connected to control chip 5 and is used to receive information electrical signals from control chip 5 and convert them into information optical signals before emitting them. Optical coupling connector 62 is provided with an uplink optical fiber link 621 and a downlink optical fiber link 623. The uplink optical fiber link 621 is used to receive information optical signals and transmit them to the vehicle central control system. The downlink optical fiber link 623 is used to receive control optical signal commands transmitted by the vehicle central control system and transmit them to the receiving component 63. The receiving component 63 is electrically connected to control chip 5 and is used to receive control optical signal commands, convert them into control electrical signals and transmit them to control chip 5.

[0031] Specifically, the optical transmission unit 6 includes a transmitting component 61, an optical coupling connector 62, and a receiving component 63. The optical coupling connector 62 is equipped with an uplink optical fiber link 621 and a downlink optical fiber link 623. The uplink optical fiber link 621 is used to receive the information optical signal emitted by the transmitting component 61 and transmit the information optical signal to the vehicle central control system, so that the vehicle central control system can obtain the vehicle surrounding image information contained in the information optical signal, thereby enabling lane recognition and reversing guidance and other driver assistance functions based on the information optical signal, improving driving safety and convenience. The downlink optical fiber link 623 is used to receive the control optical signal command transmitted by the vehicle central control system and transmit the optical signal to the receiving component 63. The receiving component 63 is electrically connected to the control chip 5, and is used to receive the control optical signal command, convert the control optical signal command into a control electrical signal, and transmit it to the control chip 5, so that the control chip 5 can control the camera 4 to perform corresponding shooting operations according to the control electrical signal, so as to accurately obtain the required vehicle surrounding image information. Compared to existing vehicle-mounted cable communication methods, this utility model, through the implementation of this embodiment, can realize optical communication. This provides a communication link with greater bandwidth and higher speed to meet the communication needs of intelligent vehicles. Furthermore, optical communication can avoid electromagnetic interference, achieving more reliable and stable communication transmission.

[0032] It is worth mentioning that the control light signal commands of the in-vehicle central control system include commands to control the shooting frequency, shooting brightness, shooting angle, and shooting direction of camera 4. For example, when the ambient light is insufficient, causing the image information of the vehicle's surroundings acquired by camera 4 to be unclear, the image information in the relevant information light signals acquired by the in-vehicle central control system through the uplink fiber optic link 621 will also naturally be unclear. To solve this problem, the in-vehicle central control system can transmit control light signal commands to increase shooting brightness through the downlink fiber optic link 623, thereby controlling camera 4 to increase shooting brightness through control chip 5. Furthermore, when the user needs to reverse, the in-vehicle central control system can transmit control light signal commands to shoot backward through the downlink fiber optic link 623, thereby controlling camera 4 to adjust its shooting angle through control chip 5 to acquire image information behind the vehicle, enabling the in-vehicle central control system to provide reversing guidance and ensure reversing safety.

[0033] Furthermore, since the control chip 5, transmitting component 61, optical coupling connector 62, and receiving component 63 are all integrated on the circuit board 3, the entire vehicle-mounted optical communication module 100 can be compactly designed, saving space and improving the overall system integration. The control chip 5 is a MAC chip.

[0034] More specifically, the transmitting component 61 includes a driver chip 611 and a laser chip 612. The driver chip 611 is electrically connected to the control chip 5 and the laser chip 612. The laser chip 612 is located on the input side of the uplink optical fiber link 621. The driver chip 611 receives the information electrical signal from the control chip 5 and controls the laser chip 612 to generate laser light according to the information electrical signal, thereby converting the information electrical signal into a corresponding information optical signal for transmission in the uplink optical fiber link 621. The receiving component 63 includes a photoelectric conversion chip 631 and a transimpedance amplifier chip 632. The photoelectric conversion chip 631 is located on the output side of the downlink optical fiber link 623 and receives the control optical signal command transmitted from the downlink optical fiber 6231, converting it into a corresponding control electrical signal. The transimpedance amplifier chip 632 is electrically connected to the photoelectric conversion chip 631 and the control chip 5. The transimpedance amplifier chip 632 can receive and amplify the control electrical signal converted by the photoelectric conversion chip 631 and transmit it to the control chip 5, thereby ensuring that the control electrical signal can be reliably received by the control chip 5. Among them, laser chip 612 is VCSEL (Vertical-Cavity Surface-Emitting Laser), photoelectric conversion chip 631 is photodiode, and transimpedance amplifier chip 632 is TIA (Transimpedance Amplifier) ​​chip.

[0035] As a preferred embodiment of this invention, such as Figure 2 , Figure 3 and Figure 6 As shown, the uplink fiber optic link 621 includes a total reflection mirror 6212 mounted on an optical coupling connector 62 and N uplink optical fibers 6213. The N uplink optical fibers 6213 are arranged in parallel. The light input end and the transmitting component 61 of each uplink optical fiber 6213 are located on the reflecting side of the total reflection mirror 6212, and the transmitting component 61 is correspondingly set with the light output end of the uplink optical fiber 6213. The light output end of each uplink optical fiber 6213 is connected to the vehicle central control system.

[0036] Specifically, N uplink optical fibers 6213 are arranged in parallel. The input end and the transmitting component 61 of each uplink optical fiber 6213 are located on the reflecting side of the total reflection mirror 6212, and the transmitting component 61 is correspondingly set with the output end of the uplink optical fiber 6213. Thus, the information light signal emitted by the transmitting component 61 is incident on the total reflection mirror 6212 and reflected back to the input end of the corresponding uplink optical fiber 6213, and then transmitted to the vehicle central control system through the output end of the uplink optical fiber 6213, realizing the transmission of uplink image data. Furthermore, by setting the total reflection mirror 6212, the optical path between the transmitting component 61 and the input end of the uplink optical fiber 6213 can be adjusted, allowing for more flexible arrangement of the positions of the transmitting component 61 and the input end of the uplink optical fiber 6213. It should be noted that N in this embodiment is an integer greater than or equal to 1, and the number of uplink optical fibers 6213 is adaptively set according to the corresponding interface of the vehicle central control system of different manufacturers.

[0037] As a preferred embodiment of this invention, such as Figure 3 and Figure 6 As shown, the uplink fiber optic link 621 also includes N lenses 6211 disposed on the optical coupling connector 62. Each lens 6211 is located between the light-emitting side of the transmitting component 61 and the reflection side of the total reflection mirror 6212, and is disposed corresponding to the light-inlet end of each row of optical fibers.

[0038] Specifically, in this embodiment, a lens 6211 is disposed between the light-emitting side of the transmitting component 61 and the reflective side of the total reflection mirror 6212, and each lens 6211 is configured to correspond to the light-input end of each row of optical fibers. Thus, the lens 6211 can focus the information light signal emitted from the transmitting component 61, ensuring that the information light signal accurately enters the total reflection mirror 6212 and is accurately reflected to the light-input end of the uplink optical fiber 6213, thereby improving the stability and reliability of the information light signal. It should be noted that N in this embodiment is an integer greater than or equal to 1, and the number of lenses 6211 is the same as the number of uplink optical fibers 6213.

[0039] As a preferred embodiment of this invention, such as Figures 2 to 6As shown, the optical coupling connector 62 is provided with a first positioning groove 622, which is located on the reflecting side of the total reflection mirror 6212. The groove wall of the first positioning groove 622 near the total reflection mirror 6212 is provided with N first positioning holes 6221, and the groove wall on the other side is provided with N first mounting holes 6222. The light-inlet end of the uplink optical fiber 6213 passes through the first mounting hole 6222 and the first positioning groove 622 in sequence, and is inserted into the first positioning hole 6221.

[0040] Specifically, the optical coupling connector 62 is provided with a first positioning groove 622, and the groove wall of the first positioning groove 622 near the total reflection mirror 6212 is provided with N first positioning holes 6221, and the groove wall on the other side is provided with N first mounting holes 6222. The first positioning groove 622, the first positioning holes 6221 and the first mounting holes 6222 cooperate to make the installation and positioning of the uplink optical fiber 6213 more convenient and accurate. During installation, the light-inlet end of the uplink optical fiber 6213 is simply passed through the first mounting hole 6222 and the first positioning groove 622 in sequence, and inserted into the first positioning hole 6221, which ensures that the total reflection mirror 6212 can accurately reflect the information light signal to the light-inlet end of the uplink optical fiber 6213. It should be noted that N in this embodiment is an integer greater than or equal to 1, and the number of first mounting holes 6222 and first positioning holes 6221 is the same as the number of uplink optical fibers 6213.

[0041] As a preferred embodiment of this invention, such as Figures 2 to 5 As shown, the first positioning groove 622 is filled with glue.

[0042] Specifically, the first positioning groove 622 is filled with glue. The glue can fix the light input end of the uplink optical fiber 6213, ensuring that it is stably inserted in the first positioning hole 6221 and preventing the light input end of the uplink optical fiber 6213 from loosening or shifting. On the other hand, the glue can protect the light input end of the uplink optical fiber 6213 from the influence of the external environment and extend the service life of the uplink optical fiber 6213.

[0043] As a preferred embodiment of this invention, such as Figure 3 , Figure 6 and Figure 7 As shown, the light input direction of the total reflection mirror 6212 and the uplink optical fiber 6213 and the light output direction of the transmitting component 61 are both set at a 45° angle.

[0044] Specifically, the light input direction of the total reflection mirror 6212 and the uplink optical fiber 6213 and the light output direction of the transmitting component 61 are both set at a 45° angle. Thus, the light input direction of the uplink optical fiber 6213 and the light output direction of the transmitting component 61 can be set at a 90° angle, so that the uplink optical fiber 6213 and the transmitting component 61 on the optical coupling connector 62 can be set in upper and lower layers. This allows the length and height ratio of the vehicle-mounted optical communication module 100 to be adjusted, avoiding the vehicle-mounted optical communication module 100 from being too long.

[0045] As a preferred embodiment of this invention, such as Figure 2 , Figure 3 and Figure 8 As shown, the downlink fiber link 623 includes N downlink optical fibers 6231 disposed on the optical coupling connector 62. The N downlink optical fibers 6231 are arranged in parallel. The input end of each downlink optical fiber 6231 is connected to the vehicle central control system, and the output end of each downlink optical fiber 6231 is disposed opposite to the receiving component 63.

[0046] Specifically, N downlink optical fibers 6231 are arranged in parallel. The input end of each downlink optical fiber 6231 is connected to the vehicle's central control system, and the output end of each downlink optical fiber 6231 is positioned opposite to the receiving component 63. Thus, control optical signal commands generated by the vehicle's central control system can be input to the input end of the downlink optical fiber 6231 and transmitted to the receiving component 63 through the output end of the downlink optical fiber 6231, ensuring accurate transmission of the control optical signal commands. It should be noted that N in this embodiment is an integer greater than or equal to 1, and the number of downlink optical fibers 6231 is adaptively set according to the corresponding interface of the vehicle's central control system of different manufacturers.

[0047] As a preferred embodiment of this invention, such as Figures 2 to 6 and Figure 8 As shown, the optical coupling connector 62 is provided with a second positioning groove 624. The groove wall of the second positioning groove 624 near the receiving component 63 is bent and provided with N second positioning holes 6241 so that the second positioning holes 6241 can be exposed at the bottom of the optical coupling connector 62. The groove wall on the other side of the second positioning groove 624 is provided with N second mounting holes 6242. The light-emitting end of the downlink optical fiber 6231 passes through the second mounting holes 6242, the second positioning groove 624 and the second positioning holes 6241 in sequence.

[0048] Specifically, the optical coupling connector 62 is provided with a second positioning groove 624. The groove wall of the second positioning groove 624 near the receiving component 63 is bent and has N second positioning holes 6241. The groove wall on the other side of the second positioning groove 624 has N second mounting holes 6242. The cooperation of the second positioning groove 624, the second positioning holes 6241, and the second mounting holes 6242 makes the installation and positioning of the downlink optical fiber 6231 more convenient and precise. During installation, simply passing the light-emitting end of the downlink optical fiber 6231 sequentially through the second mounting hole 6242, the second positioning groove 624, and the second positioning hole 6241 ensures that the light-emitting end of the downlink optical fiber 6231 can accurately transmit control optical signal commands to the receiving component 63.

[0049] Furthermore, because the curved design of the second positioning hole 6241 exposes it at the bottom of the optical coupling connector 62, the downlink optical fiber 6231 and the receiving component 63 on the optical coupling connector 62 can be arranged vertically, thereby adjusting the length-to-height ratio of the vehicle-mounted optical communication module 100 and preventing the vehicle-mounted optical communication module 100 from becoming too long. It should be noted that in this embodiment, N is an integer greater than or equal to 1, and the number of the second positioning hole 6241 and the second mounting hole 6242 is the same as the number of downlink optical fibers 6231.

[0050] As a preferred embodiment of this invention, such as Figures 2 to 6 and Figure 8 As shown, the second positioning groove 624 is filled with glue.

[0051] Specifically, the second positioning groove 624 is filled with glue. The glue can fix the light-emitting end of the downlink optical fiber 6231, ensuring that it is stably inserted into the second positioning groove 624 and the second positioning hole 6241, thus preventing the light-emitting end of the downlink optical fiber 6231 from loosening or shifting. On the other hand, the glue can protect the light-emitting end of the downlink optical fiber 6231 from the influence of the external environment, thus extending the service life of the downlink optical fiber 6231.

[0052] As a preferred embodiment of this invention, such as Figure 1 , Figure 2 and Figure 9 As shown, the vehicle-mounted optical communication module 100 also includes a housing 1, a cover 2, and an optical fiber adapter 7. The housing 1 has a receiving groove 11, and the circuit board 3, the control chip 5, and the optical transmission unit 6 are all located in the receiving groove 11. The cover 2 covers the opening of the receiving groove 11. The groove walls on both sides of the receiving groove 11 are respectively provided with a first mounting port 111 and a second mounting port 112. The camera 4 is located outside the housing 1 and partially passes through the first mounting port 111 to be electrically connected to the control chip 5. The optical fiber adapter 7 is installed at the second mounting port 112 to fix the uplink optical fiber 6213 and the downlink optical fiber 6231.

[0053] Specifically, the housing 1 is provided with a receiving groove 11, which provides installation space so that the circuit board 3, the control chip 5 and the optical transmission unit 6 can be integrated and installed in the receiving groove 11. The cover 2 is placed on the opening of the receiving groove 11, thereby sealing the receiving groove 11 and protecting the circuit board 3, the control chip 5 and the optical transmission unit 6 inside the receiving groove 11.

[0054] Furthermore, the walls on both sides of the receiving slot 11 are respectively provided with a first mounting port 111 and a second mounting port 112. The camera 4 is located outside the housing 1, and part of it passes through the first mounting port 111 and is electrically connected to the control chip 5. This layout ensures that the part of the camera 4 located outside the housing 1 can acquire image information around the vehicle, meeting the needs of the vehicle-mounted optical communication module 100 for monitoring the vehicle's surrounding environment. On the other hand, the first mounting port 111 enables a direct connection between the camera 4 and the control chip 5, ensuring that image information can be stably and quickly transmitted to the control chip 5, providing a guarantee for subsequent processing and transmission. The fiber optic adapter 7 is installed at the second mounting port 112. The fiber optic adapter 7 can fix the uplink fiber 6213 and the downlink fiber 6231, ensuring a stable connection between the uplink fiber 6213 and the downlink fiber 6231 and the vehicle central control system, and also protecting the uplink fiber 6213 and the downlink fiber 6231.

[0055] It should be understood that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some of the technical features; and all such modifications and substitutions should fall within the protection scope of the appended claims of this utility model.

Claims

1. A vehicle-mounted optical communication module, characterized in that, include: Circuit board; Cameras are used to acquire image information around the vehicle; A control chip, which is located on the circuit board and electrically connected to the camera, is used to receive image information from the camera and convert it into information electrical signals; An optical transmission unit includes a transmitting component, an optical coupling connector, and a receiving component. The transmitting component, optical coupling connector, and receiving component are all integrated on the circuit board. The transmitting component is electrically connected to the control chip and is used to receive information electrical signals from the control chip, convert the information electrical signals into information optical signals, and then emit them. The optical coupling connector has an uplink optical fiber link and a downlink optical fiber link. The uplink optical fiber link is used to receive the information optical signals and transmit them to the vehicle central control system. The downlink optical fiber link is used to receive control optical signal commands transmitted from the vehicle central control system and transmit the control optical signal commands to the receiving component. The receiving component is electrically connected to the control chip and is used to receive the control optical signal commands, convert the control optical signal commands into control electrical signals, and then transmit them to the control chip.

2. The vehicle-mounted optical communication module according to claim 1, characterized in that, The uplink fiber optic link includes a total reflection mirror mounted on the optical coupling connector and N uplink fibers. The N uplink fibers are arranged in parallel. The light input end of each uplink fiber and the transmitting component are both located on the reflection side of the total reflection mirror. The transmitting component is correspondingly set with the light output end of the uplink fiber. The light output end of each uplink fiber is connected to the vehicle central control system.

3. The vehicle-mounted optical communication module according to claim 2, characterized in that, The uplink fiber optic link further includes N lenses disposed on the optical coupling connector, each lens being located between the light-emitting side of the transmitting component and the reflective side of the total reflection mirror, and corresponding to the light-inlet end of each of the fiber optic links.

4. The vehicle-mounted optical communication module according to claim 2, characterized in that, The optical coupling connector is provided with a first positioning groove, which is located on the reflecting side of the total reflection mirror. The groove wall on the side of the first positioning groove near the total reflection mirror is provided with N first positioning holes, and the groove wall on the other side is provided with N first mounting holes. The light-inlet end of the uplink optical fiber passes through the first mounting hole and the first positioning groove in sequence, and is inserted into the first positioning hole.

5. The vehicle-mounted optical communication module according to claim 4, characterized in that, The first positioning groove is filled with glue.

6. The vehicle-mounted optical communication module according to claim 2, characterized in that, The total reflection mirror is set at a 45° angle to the light input direction of the uplink optical fiber and the light output direction of the transmitting component.

7. The vehicle-mounted optical communication module according to any one of claims 1-6, characterized in that, The downlink fiber link includes N downlink fibers disposed on the optical coupling connector. The N downlink fibers are arranged in parallel. The input end of each downlink fiber is connected to the vehicle central control system, and the output end of each downlink fiber is disposed opposite to the receiving component.

8. The vehicle-mounted optical communication module according to claim 7, characterized in that, The optical coupling connector is provided with a second positioning groove. The groove wall of the second positioning groove near the receiving component is bent and provided with N second positioning holes so that the second positioning holes can be exposed at the bottom of the optical coupling connector. The groove wall on the other side of the second positioning groove is provided with N second mounting holes. The light-emitting end of the downlink optical fiber passes through the second mounting hole, the second positioning groove and the second positioning hole in sequence.

9. The vehicle-mounted optical communication module according to claim 8, characterized in that, The second positioning groove is filled with glue.

10. The vehicle-mounted optical communication module according to claim 7, characterized in that, It also includes a housing, a cover, and a fiber optic adapter. The housing has a receiving slot, in which the circuit board, the control chip, and the optical transmission unit are all located. The cover is placed over the opening of the receiving slot. The two sides of the receiving slot have a first mounting port and a second mounting port, respectively. The camera is located outside the housing and partially passes through the first mounting port to be electrically connected to the control chip. The fiber optic adapter is installed at the second mounting port to fix the uplink fiber and the downlink fiber.

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